Kids reached successfully Gokyo Ri while they were on Renjo La Pass Trek. If they made it, you can do it for sure!
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https://www.frolicadventure.com/everest-base-camp-trek
https://www.frolicadventure.com/everest-base-camp-gokyo-lakes-trek
https://www.frolicadventure.com/everest-three-high-pass-trek
https://www.frolicadventure.com/gokyo-lake-trek
https://www.frolicadventure.com/everest-base-camp-helicopter-tour
https://www.frolicadventure.com/helicopter-return-everest-base-camp-trek